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    Wyświetlanie 1-12 z 12
    Tytuł:
    Dlaczego warto zostać inżynierem - działania promocyjne instytucji naukowo-badawczych oraz podmiotów komercyjnych
    Why is it worth to become au engineer? - Promotional activities of scientific and research institutions and commercial entities.
    Autorzy:
    Marczyńska, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/212663.pdf
    Data publikacji:
    2012
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
    Tematy:
    promocja uczelni
    kampanie promocyjne uczelni wyższych
    udział przedsiębiorstw w promocji nauki
    promotion of university
    promotional campaigns universities
    companies involved in the promotion of science
    Opis:
    Od kilku lat obserwujemy na europejskich rynkach pracy rosnące zapotrzebowanie na osoby z wykształceniem technicznym. Podobny trend utrzymuje się w Polsce, dlatego też coraz więcej instytucji decyduje się wspierać akcje zachęcające młodych ludzi do studiowania kierunków ścisłych. W roku 1990 studiowało w Polsce 400 tys. osób, dziesięć lat później studentów było już 1,5 min. Najbardziej oblegane kierunki to w 2002 roku: zarządzanie i marketing, pedagogika, ekonomia, administracja, prawo, finanse i bankowość, politologia i nauki społeczne. Wyniki pokazały zatem, że dziesięć lat temu co siódmy student studiował marketing i zarządzanie, a co dziesiąty pedagogikę. W efekcie rynek pracy jest nasycony absolwentami kierunków humanistycznych, natomiast obserwujemy niedostatek absolwentów kierunków technicznych.
    The article explains the need for graduates with technical education. Examples of promoting them programmes, held by national and European authorities, are given. Finally examples of actions taken by certain scientific institutions are presented in details.
    Źródło:
    Prace Instytutu Lotnictwa; 2012, 4 (225); 467-470
    0509-6669
    2300-5408
    Pojawia się w:
    Prace Instytutu Lotnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Why is it worth to become au engineer? - Promotional activities of scientific and research institutions and commercial entities
    Autorzy:
    Marczyńska, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/213582.pdf
    Data publikacji:
    2012
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
    Tematy:
    promontional activities
    scientific and research institutions
    commercial entities
    Opis:
    The article explains the need for graduates with technical education. Examples of promoting them programmes, held by national and European authorities, are given. Finally examples of actions taken by certain scientific institutions are presented in details.
    Źródło:
    Prace Instytutu Lotnictwa; 2012, 5 (226); 247-250
    0509-6669
    2300-5408
    Pojawia się w:
    Prace Instytutu Lotnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hydrogen Absorption in Gd Thin Films
    Autorzy:
    Marczyńska, A.
    Pacanowski, S.
    Szymański, B.
    Smardz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030512.pdf
    Data publikacji:
    2018-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.70.-i
    68.55.-a
    Opis:
    In this contribution we have studied an initial hydrogen absorption in Gd thin films using in-situ X-ray photoelectron spectroscopy (XPS) and ex-situ standard X-ray diffraction. As an initial hydrogen absorption indicator we have used broadening of the Gd-4f peak. The Gd thin films with a thickness of 200 nm were deposited at room temperature (RT) using UHV RF magnetron sputtering. As a substrate we have used naturally oxidised Si(100) wafers with 20 nm - Pd buffer layer. Furthermore, hydrogen absorption kinetics under a pressure of 100 mbar in Pd covered 200 nm Gd thin film was studied at RT using four-point resistivity measurements.
    Źródło:
    Acta Physica Polonica A; 2018, 133, 3; 624-627
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Growth and Structural Characterisation of V/Fe Multilayers
    Autorzy:
    Marczyńska, A.
    Skoryna, J.
    Szymański, B.
    Smardz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1387036.pdf
    Data publikacji:
    2015-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.70.-i
    68.55.-a
    Opis:
    The (110) oriented V/Fe multilayers were prepared at room temperature using UHV magnetron sputtering. As a substrate we have used Si(100) wafers with an oxidised surface. The surface chemical composition and the cleanness of all layers was checked in situ, immediately after deposition, transferring the samples to an UHV analysis chamber equipped with X-ray photoelectron spectroscopy. The structure of the multilayers has been studied ex situ by low- and high-angle X-ray diffraction. The modulation wavelength was determined from the spacing between satellite peaks in the X-ray diffraction patterns. Results were consistent with the values obtained from total thickness divided by the number of repetitions. Growth of the Fe (V) on 1.6 nm V (Fe) underlayer was studied by succesive deposition and X-ray photoelectron spectroscopy measurements starting from 0.2 nm of Fe (V) layer, respectively. From the exponential variation of the X-ray photoelectron spectroscopy Fe 2p and V 2p integral intensities with increasing layer thickness we conclude that the Fe and V sublayers grow homogeneously in the planar mode.
    Źródło:
    Acta Physica Polonica A; 2015, 127, 2; 552-554
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetisation and hydrogenation of Mg/Ni multilayers
    Autorzy:
    Pacanowski, S.
    Marczyńska, A.
    Dawczak-Dębicki, H.
    Jabłoński, B.
    Szymański, B.
    Smardz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1048263.pdf
    Data publikacji:
    2018-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.70.Cn
    61.10.Nz
    Opis:
    In this contribution we have studied magnetisation of Mg/Ni multilayers (MLs) to characterise the alloing effect near interfaces. The layered structure was characterised by standard X-ray diffraction. The MLs were deposited by UHV magnetron sputtering onto naturally oxidised Si(100) substrates. Results showed, that due to Mg-Ni alloy formation near interfaces the magnetizations of the MLs were strongly reduced. Effective "dead" Ni layer thickness was estimated as 1.2 nm at room temperature (RT). Furthermore, hydrogen absorption kinetics at a pressure of about 1000 mbar was studied at RT in Pd covered Mg/Ni MLs using four-point resistivity measurements. Results showed that the fastest initial rise in resistance in the first 9 s was observed for d_{Ni}=3.5 nm.
    Źródło:
    Acta Physica Polonica A; 2018, 133, 3; 617-619
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Interlayer Exchange Coupling in Nb/Fe Multilayers
    Autorzy:
    Marczyńska, A.
    Pugaczowa-Michalska, M.
    Szymański, B.
    Majchrzycki, Ł.
    Smardz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030764.pdf
    Data publikacji:
    2018-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.70.-i
    68.55.-a
    Opis:
    The (110) oriented Nb-Fe multilayers (MLs) with constant Fe and variable Nb sublayer thicknesses were prepared at room temperature using UHV magnetron sputtering. The artificial periodicity was revealed by intense satellite peaks in the low- and high-angle X-ray diffraction patterns. Magnetic hysteresis loop measurements at 5 K revealed antiferromagnetic (AF) exchange coupling of the Fe sublayers for Nb spacer thickness of about 3 monolayers. The corresponding AF coupling energy is equal to about -1.36 mJ/m². The Nb spacer thickness corresponding to the position of the AF peak is in good agreement with ab-initio calculations within localized spin density approximations of exchange-correlation potential.
    Źródło:
    Acta Physica Polonica A; 2018, 133, 3; 605-608
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Examination of oral biofilm microbiota in patients using fixed orthodontic appliances in order to prevent risk factors for health complications
    Autorzy:
    Perkowski, K.
    Balraza, W.
    Conn, D.B.
    Marczyńska-Stolarek, M.
    Chomicz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/2083064.pdf
    Data publikacji:
    2019
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    orthodontical appliances
    infectious oral microbiota
    risk of health complications
    prevention
    Opis:
    Introduction and objective. In recent decades the use of orthodontic appliances in Poland has increased; however, data on their influence on changes of components of the microbiome connected with oral biofilm are scarce. The objective of this study was to evaluate oral microbiota in terms of their role as risk factors for health complications. Materials and method. The study included 100 patients treated with removable or fixed appliances. Oral hygiene and gingival health were determined, and periodontal swabs taken from each patient for parasitological, bacteriological and mycological microscopic and in vitro examinations. Results. Oral protists and various pathogenic and opportunistic bacterial and fungal strains were identified in the superficial layer of biofilm. A higher prevalence of bacteria, Enterococcus faecalis, E. faecium, Staphylococcus aureus and Escherichia coli, and various strains of yeast-like fungi from the Candida albicans group, occurred in patients treated with the fixed appliance than in those using a removable appliance or not treated orthodontically. In some periodontal samples from patients treated with fixed appliances, cysts of the Acanthamoeba spp. were found. Conclusions. The use of orthodontic appliances alters the status of the oral cavity; it has impact on the colonization of oral biofilm by opportunistic/pathogenic strains, and increases the risk of their dissemination to various human tissues and organs. Pretreatment examination of oral microbiome, its monitoring particularly during treatment with fixed appliances, and preventive elimination of the potentially pathogenic strains to avoid health complications, are highly recommended, especially in patients with impaired immunity.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2019, 26, 2; 231-235
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Objawy kliniczne toksokarozy u dzieci badanych w Oddziale Hospitalizacji Jednego Dnia IMiD w latach 2008-2009
    Autorzy:
    Karney, A
    Mordasewicz-Goliszewska, M.
    Dobosz, S.
    Krynicka-Czech, B.
    Turzyniecka, M.
    Kowalewska-Kantecka, B.
    Marczynska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/839079.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    choroby czlowieka
    choroby pasozytnicze
    toksokaroza
    czestotliwosc wystepowania
    dzieci
    objawy kliniczne
    badania kliniczne
    Instytut Matki i Dziecka Warszawa
    lata 2008-2009
    Źródło:
    Annals of Parasitology; 2010, 56, 3; 195-196
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Valence Band Modifications on Hydrogen Absorption in Zr-Pd Alloy Thin Films
    Autorzy:
    Jabłoński, B.
    Pacanowski, S.
    Werwiński, M.
    Marczyńska, A.
    Dawczak-Dębicki, H.
    Szajek, A.
    Smardz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030742.pdf
    Data publikacji:
    2018-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    73.22.-f
    82.80.Pv
    Opis:
    We study the valence band modifications of in-situ prepared nano- and polycrystalline Pd-Zr alloy thin films using X-ray photoelectron spectroscopy. Results were compared with valence bands calculated by ab initio methods. Furthermore, hydrogen absorption and desorption kinetics under pressure of about 570 mbar were studied in Pd covered nanocrystalline ZrPd₂ alloy thin film. Results showed that modifications of the valence band of the nanocrystalline alloy thin film could significantly influence on hydrogen absorption and desorption process.
    Źródło:
    Acta Physica Polonica A; 2018, 133, 3; 620-623
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Exchange coupling effects in naturally oxidised ultrathin iron film
    Autorzy:
    Dawczak-Dębicki, H.
    Marczyńska, A.
    Rogowska, A.
    Wachowiak, M.
    Nowicki, M.
    Pacanowski, S.
    Jabłoński, B.
    Czajka, R.
    Smardz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1050673.pdf
    Data publikacji:
    2018-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.70.-i
    75.70.Kw
    Opis:
    Oxidation process of Fe films under atmospheric conditions is depth limited such that an oxide covering layer with a well-defined thickness is formed by which the underlying metal is prevented from further oxidation. Iron thin film with an initial thickness d_{i}=4 nm was deposited onto 1.6 nm - V(110) buffer layer using UHV magnetron sputtering. The planar growth of Fe oxides was revealed by atomic force microscopy. X-ray photoelectron spectroscopy studies performed after 250 days of oxidation revealed formation of a hematite (α-Fe₂O₃) ultrathin film on the metallic rest of iron. Furthermore, low temperature magnetic measurements of the oxidised Fe ultrathin film revealed an exchange anisotropy which is imposed to the metallic rest. As a result, we have observed at low temperatures a shift and broadening of the hysteresis loops due to the exchange interaction at the metal-oxide interface.
    Źródło:
    Acta Physica Polonica A; 2018, 133, 3; 601-604
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preparation and Characterisation of Fe/Ce Multilayer
    Autorzy:
    Dawczak-Dębicki, H.
    Marczyńska, A.
    Pacanowski, S.
    Szymański, B.
    Majchrzycki, Ł.
    Kowalski, W.
    Grembowski, W.
    Bilski, T.
    Smardz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030530.pdf
    Data publikacji:
    2018-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.70.-i
    68.55.-a
    Opis:
    Ce/Fe multilayer (ML) with constant Fe (2 nm) and Ce (4.5 nm) sublayer thicknesses was prepared onto naturally oxidised Si(100) substrate using magnetron sputtering. Chemical purity of the sublayers was revealed in-situ by X-ray photoelectron spectroscopy (XPS) measurements. The structure of the sample was studied by standard low- and high-angle X-ray diffraction (XRD). Surface morphology of the ML was examined by atomic force microscopy. Magnetic properties of the sample was studied in the temperature range between 5 and 350 K using a vibrating sample magnetometer in a magnetic field up to 9 T. The hysteresis loops were measured in field perpendicular and parallel to the substrate. Furthermore, hydrogen absorption at a pressure of about 1000 mbar was studied at room temperature (RT) in Pd covered ML using four-point resistivity measurements. The solid state amorphisation reaction have been confirmed by XRD and magnetic measurements of the Ce/Fe ML. The absence of satellite peaks in the low - angle XRD pattern revealed no artificial layered structure. The above results show that interdiffusion of cerium and iron atoms is extremely fast at RT.
    Źródło:
    Acta Physica Polonica A; 2018, 133, 3; 628-631
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Natural xidation of thin Fe films on V buffer layer
    Autorzy:
    Dawczak-Dębicki, H.
    Marczyńska, A.
    Rogowska, A.
    Wachowiak, M.
    Nowicki, M.
    Pacanowski, S.
    Jabłoński, B.
    Kowalski, W.
    Grembowski, J.
    Czajka, R.
    Smardz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1055062.pdf
    Data publikacji:
    2017-10
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.70.-i
    68.55.-a
    Opis:
    We have studied oxidation kinetics of Fe thin film under atmospheric conditions using the fact that metallic iron is a ferromagnet but ultrathin natural iron oxides are approximately nonmagnetic at room temperature. As a consequence, oxidation is associated with a loss in total Fe magnetic moment. Results show that the sample with an initial Fe thickness equal to 10 nm oxidize relatively fast (time constant τ=0.05 day), whereby a constant amount of 2.5 nm of metal is transformed into oxides. For lower iron initial thickness (d_{i}=4 nm) the time constant for oxidation significantly increases reaching a value of 2 days. Furthermore, X-ray photoelectron spectroscopy studies performed after 144 days of oxidation revealed formation of hematite (α-Fe₂O₃) thin film on the metallic rest of iron.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 4; 1272-1276
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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